45.0 degrees by 0.047 in deep chamfer on edge of both sides
A transparent item of a predetermined size that permits unobstructed and undistorted view of a desired area. It may include a frame, have reference markings, grid lines and may be heat strengthened and/or tinted. It is generally used where safety, security, and/or the restriction of foreign matter are required, such as the visual examination of the inside of pressurized tanks, liquid sights, controlled liquid flow, and inspection of equipment enclosed in a housing. See window (as modified); scale, cathode ray tube; scale, plotting; window, metal; window, wood; and window panel, aircraft.
Classification: Pressed or molded glass articles, wired or not, for building or construction;leaded glass windows etc; formed multicellular or foam glass
NSN 6620-01-201-9295
NSN 5835-01-143-9143
NSN 6135-01-516-4638
NSN 5975-00-829-6738
NSN 5975-00-553-7151
NSN 6610-00-473-5046
NSN 2925-00-808-5077
NSN 6620-01-599-2011
NSN 6135-00-152-8729
NSN 6135-00-269-5843
NSN 5920-01-609-1260
NSN 4140-00-895-3417